/* =========================================================
   KOHARUSAN — Neo-Brutalist Arcade
   Monochrome (black/white) + electric accent
   ========================================================= */

:root {
  --ink: #0a0a0a;
  --paper: #f4f4f0;
  --accent: #c6ff00;        /* electric lime */
  --accent-2: #0040ff;      /* electric blue (secondary) */
  --shadow: 8px 8px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --border: 3px solid var(--ink);
  --border-thick: 5px solid var(--ink);
  --font-display: "Arial Black", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Lock scroll while age-gate is active */
body.gate-locked {
  overflow: hidden;
  height: 100vh;
}

a {
  color: var(--ink);
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ---------- Layout ---------- */
.wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 72px 0;
}

/* ---------- Typography ---------- */
h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.95;
}

h1 { font-size: clamp(2.6rem, 8vw, 6rem); }
h2 { font-size: clamp(1.8rem, 4vw, 3rem); margin-bottom: 24px; }
h3 { font-size: 1.3rem; margin-bottom: 12px; }

p { margin-bottom: 16px; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  background: var(--ink);
  color: var(--accent);
  padding: 6px 14px;
  margin-bottom: 20px;
}

.accent-text { color: var(--accent-2); }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: var(--paper);
  border-bottom: var(--border-thick);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  text-transform: uppercase;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand .mark {
  background: var(--ink);
  color: var(--accent);
  padding: 4px 10px;
  transform: rotate(-3deg);
  display: inline-block;
}

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 8px 12px;
  border: 2px solid transparent;
  transition: all 0.1s;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  background: var(--accent);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
}

/* ---------- Games dropdown ---------- */

.nav-item--sub { position: relative; }

.nav-sub-toggle {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 8px 12px;
  border: 2px solid transparent;
  background: none;
  color: inherit;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  transition: all 0.1s;
}

.nav-sub-toggle:hover,
.nav-sub-toggle[aria-expanded="true"],
.nav-sub-toggle[aria-current="page"] {
  background: var(--accent);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-sm);
}

.nav-caret {
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform 0.12s;
}

.nav-sub-toggle[aria-expanded="true"] .nav-caret { transform: rotate(180deg); }

.nav-sub {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 30;
  min-width: 248px;
  list-style: none;
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 6px;
}

.nav-item--sub.is-open .nav-sub { display: block; }

.nav-sub a {
  display: block;
  white-space: nowrap;
  font-size: 0.74rem;
  padding: 10px 12px;
  border: 2px solid transparent;
}

.nav-sub a:hover,
.nav-sub a[aria-current="page"] {
  background: var(--accent);
  border: 2px solid var(--ink);
  box-shadow: none;
}

.nav-toggle {
  display: none;
  font-family: var(--font-display);
  background: var(--ink);
  color: var(--paper);
  border: none;
  padding: 10px 14px;
  font-size: 0.9rem;
  cursor: pointer;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  padding: 16px 28px;
  border: var(--border);
  background: var(--paper);
  color: var(--ink);
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.08s, box-shadow 0.08s;
}

.btn:hover {
  transform: translate(4px, 4px);
  box-shadow: var(--shadow-sm);
}

.btn:active {
  transform: translate(8px, 8px);
  box-shadow: 0 0 0 var(--ink);
}

.btn--accent { background: var(--accent); }
.btn--blue { background: var(--accent-2); color: var(--paper); }
.btn--ink { background: var(--ink); color: var(--paper); }

/* ---------- Hero ---------- */
.hero {
  background: var(--ink);
  color: var(--paper);
  padding: 90px 0 110px;
  position: relative;
  overflow: hidden;
}

.hero .wrap { position: relative; z-index: 2; }

.hero h1 { color: var(--paper); }
.hero h1 .hl {
  color: var(--ink);
  background: var(--accent);
  padding: 0 10px;
  display: inline-block;
}

.hero p.lead {
  font-size: 1.15rem;
  max-width: 560px;
  margin: 24px 0 36px;
  color: var(--paper);
}

.hero .eyebrow { background: var(--accent); color: var(--ink); }

/* decorative stripes */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    45deg,
    transparent 0 28px,
    rgba(198, 255, 0, 0.05) 28px 30px
  );
  z-index: 1;
  pointer-events: none;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Game grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}

.card {
  background: var(--paper);
  border: var(--border-thick);
  box-shadow: var(--shadow);
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: transform 0.08s, box-shadow 0.08s;
}

.card:hover {
  transform: translate(4px, 4px);
  box-shadow: var(--shadow-sm);
}

.card-top {
  background: var(--ink);
  color: var(--paper);
  padding: 28px 22px;
  border-bottom: var(--border-thick);
  position: relative;
}

.card-tag {
  position: absolute;
  top: 14px;
  right: 14px;
  font-family: var(--font-display);
  font-size: 0.7rem;
  background: var(--accent);
  color: var(--ink);
  padding: 4px 8px;
  text-transform: uppercase;
}

.card-top h3 {
  color: var(--paper);
  font-size: 1.5rem;
  margin: 0;
}

.card-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.card-body p { font-size: 0.95rem; }

.card-body .btn { margin-top: auto; align-self: flex-start; }

/* ---------- Game page ---------- */
.game-frame {
  border: var(--border-thick);
  box-shadow: var(--shadow);
  background: var(--ink);
  overflow: hidden;
  line-height: 0;
}

.game-frame iframe { display: block; }

.game-meta {
  margin-top: 36px;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 32px;
}

@media (max-width: 860px) {
  .game-meta { grid-template-columns: 1fr; }
}

/* ---------- Disclaimer blocks ---------- */
.disclaimer {
  border: var(--border);
  background: var(--accent);
  padding: 18px 22px;
  font-weight: bold;
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.disclaimer strong { text-transform: uppercase; }

/* Fixed banner on Home */
.fixed-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 400;
  background: var(--ink);
  color: var(--paper);
  border-top: var(--border-thick);
  padding: 12px 24px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: bold;
}

.fixed-banner .pill {
  background: var(--accent);
  color: var(--ink);
  padding: 2px 8px;
  margin-right: 8px;
}

/* ---------- Content pages ---------- */
.prose { max-width: 760px; }
.prose p { font-size: 1.05rem; }
.prose ul { margin: 0 0 20px 22px; }
.prose li { margin-bottom: 10px; }

.link-list {
  list-style: none;
  margin: 0;
  display: grid;
  gap: 14px;
  max-width: 640px;
}

.link-list a {
  display: block;
  border: var(--border);
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  padding: 16px 20px;
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.9rem;
  transition: transform 0.08s, box-shadow 0.08s, background 0.08s;
}

.link-list a:hover {
  background: var(--accent);
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--ink);
}

.link-list a::after { content: " ↗"; }

/* info cards */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.info-box {
  border: var(--border);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  background: var(--paper);
}

.info-box .num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--accent-2);
  display: block;
  line-height: 1;
  margin-bottom: 10px;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  border-top: var(--border-thick);
  padding: 56px 0 40px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.site-footer a { color: var(--paper); }
.site-footer h4 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  color: var(--accent);
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent); }

.footer-disclaimer {
  border: 2px solid var(--accent);
  padding: 16px 20px;
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--paper);
}

.footer-bottom {
  border-top: 2px solid rgba(244, 244, 240, 0.2);
  margin-top: 36px;
  padding-top: 20px;
  font-size: 0.78rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(244, 244, 240, 0.7);
}

/* ---------- Age Gate Modal ---------- */
.age-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 10, 10, 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.age-gate[hidden] { display: none; }

.age-gate::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    transparent 0 36px,
    rgba(198, 255, 0, 0.06) 36px 38px
  );
  pointer-events: none;
}

.age-card {
  position: relative;
  background: var(--paper);
  border: var(--border-thick);
  box-shadow: 14px 14px 0 var(--accent);
  max-width: 480px;
  width: 100%;
  padding: 40px 36px;
  text-align: center;
}

.age-card .mark {
  display: inline-block;
  background: var(--ink);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 2.2rem;
  padding: 8px 18px;
  transform: rotate(-3deg);
  margin-bottom: 24px;
}

.age-card h2 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

.age-card p {
  font-size: 1rem;
  margin-bottom: 28px;
}

.age-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.age-actions .btn { width: 100%; }

.age-sub {
  margin-top: 24px;
  font-size: 0.75rem;
  color: #555;
  margin-bottom: 0;
}

/* ---------- Cookie banner ---------- */
.cookie-bar {
  position: fixed;
  bottom: 24px;
  left: 24px;
  right: 24px;
  z-index: 800;
  max-width: 520px;
  margin: 0 auto;
  background: var(--paper);
  border: var(--border-thick);
  box-shadow: var(--shadow);
  padding: 20px 22px;
}

.cookie-bar[hidden] { display: none; }

.cookie-bar p { font-size: 0.85rem; margin-bottom: 14px; }
.cookie-bar .cookie-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cookie-bar .btn { font-size: 0.75rem; padding: 10px 16px; }

/* account for fixed banner on home so footer isn't hidden */
.has-fixed-banner { padding-bottom: 60px; }

/* ---------- Responsive nav ---------- */
@media (max-width: 880px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 6px;
    margin-top: 16px;
  }
  .nav-links.open { display: flex; }
  .nav {
    flex-wrap: wrap;
  }
  .nav-links a { display: block; }

  /* On narrow screens the submenu expands in place instead of floating. */
  .nav-sub-toggle { width: 100%; justify-content: space-between; }
  .nav-sub {
    position: static;
    min-width: 0;
    margin: 6px 0 0;
    border-width: 2px;
    box-shadow: none;
  }
  .nav-sub a { white-space: normal; }
}